It is easy to walk past without registering what it is. The cairn measures roughly 2.9 metres north to south and 2.2 metres east to west, rising only about 0.4 metres at its highest point. Loose stones scattered around its perimeter suggest the edges have shifted over time, whether through weathering, grazing animals, or the slow creep of the hillside itself.

A cairn of this kind is essentially a deliberate accumulation of stones, most often raised in prehistoric times as a burial marker or territorial monument, though many were also used to clear agricultural ground. This particular example in Garranes is too low and too eroded to give away much about its original purpose with any certainty. What adds a quiet layer of interest is that a second cairn lies approximately ten metres to the north-west. Two cairns placed in such proximity on the same slope are unlikely to be coincidental, and the pairing may reflect a shared ritual or commemorative function, though without excavation that remains a question the landscape keeps to itself.